All better than GC.
Does anyone who says this even remember what the Gamecube was like?
The Wii doesn't have ANYTHING third party even remotely on par with
Rogue Leader
Soul Calibur II
The three Resident Evil games
Even with something like Resident Evil 4 only being a temporary exclusive at least we got it. RE 5 isn't even annouced for the Wii. At least we got multiplatform games like Prince of Persia and Splinter Cell. The Wii doesn't even get stuff like that. Soul Calibur IV may have dumb Star Wars stuff in it but it's not on the Wii and is on the other consoles. Just the fact that the Cube got a version of Soul Calibur II is better in comparision.
Though the Cube third party support did suck. Oh man did it suck. I'd say at best right now the Wii is comparable. But I don't see how it's better. Both consoles require me to think really hard about what third party games were worth a damn.
Plus you bring up THQ? Come on! Don't be so naive to think THQ will release anything that isn't complete shovelware on ANY console. The only THQ product that was ever worth a damn was the Aki wrestling games on the N64.
The only console I owned last gen was a GC. So I think I'm quite qualified to speak on the subject, thank you very much. And your post exposes your narrow view of what comprises a library.
The Wii's library of exclusives is much more numerous and much wider than the GC's could ever be remembered as. It includes Sonic:Sotr, Trauma Center, and Elebits. You may wish to ignore them, but the success of MySims, Carnival Games, and potentially We Ski prove that they're serving consumer needs. EA has suddenly been inspired to provide new and exclusive content like Boom Blox, along with other much less palatable, but nonetheless exclusive, fare. Compared to having to wait ages for an obscure title like Doubutsu no Bancho/Cubivore to come stateside, the Wii saw surprising localizations of such quirks as Puchi Copter and The Dog Island. Will we get Jawa as well?
The GC saw one SE game in its lifetime. The Wii hasn't been out for two complete years yet and it's getting its second this July. The GC's sole headlining JRPG was Tales of Symphonia, which defected to the PS2 soon enough. Now we're getting another Tales in Dawn of a New World, but also Arc Fantasia and that mysterious Fragile. Behind the scenes the PS3's abysmal Japanese performance is likely to cause more defections.
Actually, Parappa used to be a strictly Playstation deal. The dog still is, but the next game from his creators is a Wii Exclusive(guess who the publisher is? A company most "traditional" gamers don't give a second thought to: the much-maligned and ignored Majesco). Monster Hunter Tri is coming to the Wii, a high profile steal from the PS3. So too are the Tenchu IV and Fatal Frame IV exclusives: stolen franchises from across the console divide.
In fact, considering that the Balance Board has a higher userbase in Japan than the PS3, it should prove no surprise that Nintendo's peripheral is breaking all the rules for peripherals. It's got third parties from EA(Skate it) to Konami(We Ski) to THQ(All Star Cheerleader) pledging support for what is likely to be one of the game industries most successful peripherals.
Ah, so I've mentioned THQ, that company you so ignorantly malign. They've prepared titles for the Wii that cause one to wonder where they came from. de Blob was my favorite game of the Nintendo Media Event: a platform/action game with addictive multiplayer and such a seamless pick-up-and-play experience. Deadly Creatures has you playing a Scorpion or a Tarantula...and is loaded with next-gen Brown. Yes, they're THQ and they also have a healthy stable of licensed franchises, yes they took Drawn to Life and decided to stick Spongebob in it for a sequel, but whether you like it or not they've got a one-two punch for Traditional gamers this fall in those two original IP core games.
And it's funny to think of the games I've forgotten to mention at this point, like Light Gun shooters (the GC never got those, I had to play Time Crisis on a friend's PS2 with their guncon) and adventure titles(Zack & Wiki yes, but also upcoming exclusive PC crossovers like Sam & Max, Strong Bad, and Runaway Dream of the Turtle). Then there's the WiiWare and indie games that are gravitating our way for the first time ever. And of course the music games, where not only is Activision upping their game, but EA will have to respond and other games are, exclusively, filtering in around the fringes.
I remember the GameCube as long stretches of dashed hope. I remember the Capcom Five, the droughts, and a horribly ported version of Conflict Desert Storm. I remember beating Tales of Symphonia as an exercise of willpower, not of pleasure, and I remember envying the quirks that were on other consoles: in what games could I take pictures of ghosts, fly around as mosquitos (Ka, oh where have you gone?), or enjoy rhythm music gaming? There's still plenty to envy Ian, but there's less now.
Actually, if I owned just an XBox 360, I'd personally be looking over the fence this way and wondering: "There's nothing about it that really absolutely needs motion, why didn't they give me de Blob? Why am I not getting the Strong Bad game on XBLA? And why did Geometry Wars get ported over with added features?"
Even as a PlayStation 3 owner I'd be asking myself: "would I rather have Time Crisis IV or Resident Evil: Umbrella Chronicles?"